Description
Test tube 17 x 200 mm with 20:0,2 ml graduation is a round-bottom laboratory glassware item manufactured from DURAN tubing. The tube features a graduated capacity of 20 ml subdivided in 0,2 ml steps, an NS 14/23 ground joint and an NS-Poly stopper for dependable closure. Measuring 17 mm in diameter and 200 mm in height, it fits standard test-tube racks, heating mantles and water baths while the round bottom ensures uniform heating and thorough emptying. DURAN borosilicate glass delivers the chemical durability and thermal shock resistance needed for routine sample handling, dilutions, extractions and general analytical procedures. Offered as a single piece from manufacturer Witeg, the graduated tube integrates smoothly with common ground-joint laboratory equipment and is simple to clean between uses. Clear scale markings, secure polyethylene stopper and robust construction make it a practical choice for teaching laboratories, quality-control benches and research environments requiring reliable small-volume glassware.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 1 pc
- Dimensions: 17 x 200 mm
- Graduation: 20:0,2 ml
- Ground joint: NS 14/23
- Stopper: NS-Poly stopper
- Material: DURAN tubing
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Questions about Test tubes, with ST-PE-stopper, made fro
What is this article?
Test tubes, with ST-PE-stopper, made fro is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Test tubes, inside Tubes & vials, in Labware.
A test tube is the open cylindrical vessel for a small liquid, in borosilicate glass or in plastic. Rimmed and rimless mouths differ. The size is diameter by length. It is not graduated for a result, and a glass tube that will be centrifuged has a force limit.
A tube holds a small sample upright. A test tube is the open glass or plastic cylinder. A centrifuge tube is conical so a pellet forms at the tip, and it is rated for a centrifugal force the rotor will actually reach. A vial is a small closed bottle, often for a sample that will sit in an instrument. NMR tubes are a special case: the glass has to be uniform or the spectrum is the tube, not the sample. Laboratory ware is listed under ISO laboratory glassware.
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The category is Tubes & vials. The sub-category is Test tubes. The catalogue is Labware.
Shelves beside this one are Centrifuge tubes (conical), Sample vials & NMR tubes and Tube & vial accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.